My 12 year old nephew told me that they are clickbaits. For they are a waste of time and effort.

Yes bros, I have heard about Expecty. Its a really good apps for experter as well as information seekers. 

There are a lot of them but not all pays the output of one user.
They are just simple games and some are roulette and faucets.
You will need to reach a certain amount before payout which will take you a lot of time before you can reach it.
Better just invest than do that non sense which is mostly the kind of those applications.

Earning Bitcoins for unskilled manual work has now become unfeasible. Clicking ads, doing surveys, downloading apps, etc etc. don't worth more than few thousand satoshis. More or less, you will be wasting time and when fees has grown dramatically, hardly anything comes in hand of worker. It used to be good source 3-4 years ago when rewards in BTC were high.

It is better to see for some skillful works like developing, freelancing, etc etc and earn good money in Bitcoins rather than making few bucks on Apps or Faucets.

PS: If you talking about Experty ICO, app isn't in operation yet. Is this some kind of promotion?

One month ago my brother talked to me and advice me that there are some apps to earn bitcoin but they are not totally fast earning. Investing more time effort money then you get not much bitcoin for your hard work and effort. Maybe this is one of them. But I appreciate the effort of developers for doing that games/ apps.

There is no app that can help you to acquire bitcoisn which can make you a consistence profit or decent income. Most of these apps are like faucet that pays you pennies by letting you do odds jobs like playing games and perfroming survey.

I've also heard about apps to get bitcoin by relying on give away, faucet and others, but personally I will follow the signature campaign, bounty or mining but create a beginner account to follow the signature campaign still can not, most likely for jr members minimum to follow the signature campaign, I am also still waiting for up to jr member about 1 month

No, till now i haven't heard about any of such app. If you know than please share the name of the good apps. So that we can also earn something with you.

Well you know there are many apps and other websites that pay you Bitcoins but you know the amount that they pay is not at all something that you could consider nice they pay you like 0.01 dollar and that is something I won't recommend you to waste time in since..you already have an option to... Get..paid through signature Campaigns and that's much better that those other sites and apps .

Thus don't think much about anything and focus here.

If you are asking about android apps then yes and they call it "faucets" because you can earn bits of bitcoin by watching ads or just doing an activity every hour or every 30 minutes. Although this is free money, its time wasting for me and I don't recommend this to newbies. One way is by joining in the bounty campaigns here in the forum. That is the best way to earn bitcoin although some will take some time before you can get your rewards.